A search for neutrino signal from dark matter annihilation in the center of the Milky Way with Baikal NT200

Avrorin, A.D.; Avrorin, A.V.; Aynutdinov, V.M.; Bannash, R.; Belolaptikov, I.A.; Bogorodsky, D.Y.; Brudanin, V.B.; Budnev, N.M.; Danilchenko, I.A.; Domogatsky, G.V.; Doroshenko, A.A.; Dyachok, A.N.; Dzhilkibaev Zh, A.M.; Fialkovsky, S.V.; Gafarov, A.R.; Gaponenko, O.N.; Golubkov, K.V.; Gress, T.I.; Honz, Z.; Kebkal, K.G.; Kebkal, O.G.; Konischev, K.V.; Korobchenko, A.V.; Koshechkin, A.P.; Koshel1, F.K.; Kozhin, A.V.; Kulepov, V.F.; Kuleshov, D.A.; Ljashuk, V.I.; Milenin, M.B.; Mirgazov, R.A.; Osipova, E.R.; Panfilov, A.I.; Pan’kov, L.V.; Pliskovsky, E.N.; Rozanov, M.I.; Rjabov, E.V.; Shaybonov, B.A.; Sheifler, A.A.; Shelepov, M.D.; Skurihin, A.V.; Smagina, A.A.; Suvorova, O.V.; Tabolenko, V.A.; Tarashansky, B.A.; Yakovlev, S.A.; Zagorodnikov, A.V.; Zurbanov, V.L.

Авторы: Avrorin A.D., Avrorin A.V., Aynutdinov V.M., Bannash R., Belolaptikov I.A., Bogorodsky D.Yu, Brudanin V.B., Budnev N.M., Danilchenko I.A., Domogatsky G.V., Doroshenko A.A., Dyachok A.N., Dzhilkibaev Zh A M, Fialkovsky S.V., Gafarov A.R., Gaponenko O.N., Golubkov K.V., Gress T.I., Honz Z., Kebkal K.G., Kebkal O.G., Konischev K.V., Korobchenko A.V., Koshechkin A.P., Koshel1 F.K., Kozhin A.V., Kulepov V.F., Kuleshov D.A., Ljashuk V.I., Milenin M.B., Mirgazov R.A., Osipova E.R., Panfilov A.I., Pan’kov L.V., Pliskovsky E.N., Rozanov M.I., Rjabov E.V., Shaybonov B.A., Sheifler A.A., Shelepov M.D., Skurihin A.V., Smagina A.A., Suvorova O.V., Tabolenko V.A., Tarashansky B.A., Yakovlev S.A., Zagorodnikov A.V., Zurbanov V.L.
Журнал: Astroparticle Physics
Том: 81
Год издания: 2016
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Первая страница: 12
Последняя страница: 20
DOI: 10.1016/j.astropartphys.2016.04.004
Аннотация: We reanalyze the dataset collected during the years 1998–2003 by the deep underwater neutrino telescope NT200 in the lake Baikal with the low energy threshold (10 GeV) in searches for neutrino signal from dark matter annihilations near the center of the Milky Way. Two different approaches are used in the present analysis: counting events in the cones around the direction towards the Galactic Center and the maximum likelihood method. We assume that the dark matter particles annihilate dominantly over one of the annihilation channels bb¯, W+W−, τ+τ−, μ+μ− or νν¯ . No significant excess of events towards the Galactic Center over expected neutrino background of atmospheric origin is found and we derive 90% CL upper limits on the annihilation cross section of dark matter.
Добавил в систему: Попова Елена Григорьевна

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A search for neutrino signal from dark matter annihilation in the center of the Milky Way with Baikal NT200статья